Security readout for executives and security teams
Plain-English summary
This entry flags that the ident/identd service is running on a system. Ident is an old network service that answers who owns a network connection, which can leak account names and system details to anyone who asks. It is not a bug in a specific product but a configuration exposure that helps attackers profile a host.
Executive priority
Low priority. Treat as configuration hygiene during routine hardening cycles rather than an emergency. Address opportunistically alongside other exposed legacy services; no evidence of active exploitation and no direct compromise pathway.
Technical view
CVE-1999-0629 records the presence of an ident/identd listener (TCP/113, RFC 1413) as an information disclosure exposure. When reachable, ident maps active TCP connections to local user identifiers, aiding reconnaissance and user enumeration. No CVSS, CWE, or affected-product data is published; the record is a generic configuration finding rather than a code flaw.
Likely exposure
Any host with identd bound to a network-reachable interface on TCP/113. Modern enterprise systems rarely run it; legacy Unix, IRC, and mail relays are the historical exposure surface.
Exploitation context
Not tracked in CISA KEV and no cited source claims active exploitation. The service itself is not exploited; it is queried during reconnaissance to enumerate valid usernames and correlate connections, which can accelerate follow-on attacks.
Researcher notes
Record is a legacy "service running" finding from the original CVE seed set, with no vendor, version, CWE, or CVSS. Treat it as an information-disclosure and enumeration signal, not a code-execution vulnerability. Bundle remediation with removal of other obsolete inetd services (echo, chargen, finger) during host hardening.
Mitigation direction
- Disable identd where it is not required by an application.
- Block inbound TCP/113 at perimeter and host firewalls.
- If ident is required, restrict source IPs to trusted peers only.
- Configure ident to return opaque tokens instead of real usernames.
- Consult vendor or distribution guidance for the specific ident implementation.
Validation and detection
- Scan external and internal ranges for open TCP/113 listeners.
- Query identd on discovered hosts to confirm it responds with user data.
- Review host service inventories for inetd/xinetd entries enabling identd.
- Check firewall rules and ACLs for allowed inbound traffic to port 113.
- Correlate findings with asset owners to confirm business need.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-1999-0629 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0629CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.